Abstract
Soil salinization seriously threatens the health of existing farmland and crops, and peanut cultivation is also threatened by soil salinization. Biochar has been widely studied as a soil amendment to improve the growth of various crops such as wheat and corn in saline alkali land, yet its effects on peanut growth in saline alkali soils remain underexplored. Therefore, we aim to conduct greenhouse pot experiments to test the promoting effect of biochar on the growth of peanuts in saline alkali soil, and to study the impact mechanism of biochar microbial composition. The results indicate that the application of biochar can directly improve the physicochemical properties of peanut rhizosphere soil. Compared with the control group, peanut sprout height and fresh weight significantly increased. The exploration of its causes has found that biochar can directly or indirectly improve the properties of rhizosphere soil, including reducing soil salinity and alkalinity, and increasing water content. On the other hand, biochar treatment significantly increased the availability of essential nutrients like ammonium nitrogen, available phosphorus, and organic matter which is crucial for maintaining peanut growth. At the same time, the content of stress resistant substances, including peroxidase activity, in peanuts significantly increased, while the content of malondialdehyde also decreased, further indicating that the application of biochar promotes the resistance of peanuts to salt alkali stress. In summary, the application of biochar can directly reduce the pH and moisture content of peanut rhizosphere soil, increase rhizosphere nutrient content, and enhance peanut antioxidant enzyme activity, ultimately promoting its growth in saline alkali soil.
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Claims 8
Claim · model-written summary
Biochar improved peanut rhizosphere physicochemical properties.
- Taxon
- peanut
Arachis hypogaeae0 - Treatment
- biochare0
- Outcome
- physicochemical properties of peanut rhizosphere soile0
- Direction
- improvee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of biochar can directly improve the physicochemical properties of peanut rhizosphere soil”
Claim · model-written summary
Biochar significantly increased peanut sprout height and fresh weight.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- Biochart0
- Outcome
- sprout height and fresh weighte0
- Direction
- increasede0
- Comparator
- control groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with the control group, peanut sprout height and fresh weight significantly increased”
t0“Biochar can promote the growth of peanuts”
Claim · model-written summary
Biochar reduced rhizosphere soil salinity and alkalinity.
Not reportedTaxonComparator
Verbatim
e0“biochar can directly or indirectly improve the properties of rhizosphere soil, including reducing soil salinity and alkalinity”
Claim · model-written summary
Biochar increased rhizosphere soil water content.
- Taxon
- peanutsArachis hypogaeat0
- Treatment
- Biochart0
- Outcome
- water contente0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing water content”
t0“Biochar can promote the growth of peanuts in saline alkali soil”
Claim · model-written summary
Biochar significantly increased ammonium nitrogen, available phosphorus and organic matter availability.
- Taxon
- peanutsArachis hypogaeat0
- Treatment
- biochar treatmente0
- Outcome
- availability of essential nutrients like ammonium nitrogen, available phosphorus, and organic mattere0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“biochar treatment significantly increased the availability of essential nutrients like ammonium nitrogen, available phosphorus, and organic matter”
t0“growth of peanuts”
Claim · model-written summary
Biochar significantly increased peanut stress resistant substances and peroxidase activity.
- Taxon
- peanutsArachis hypogaeae0
- Treatment
- Biochart0
- Outcome
- content of stress resistant substances, including peroxidase activitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the content of stress resistant substances, including peroxidase activity, in peanuts significantly increased”
t0“Biochar can promote”
Claim · model-written summary
Biochar decreased peanut malondialdehyde content.
- Taxon
- peanutsArachis hypogaeat0
- Treatment
- Biochart0
- Outcome
- content of malondialdehydee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the content of malondialdehyde also decreased”
t0“Biochar can promote the growth of peanuts”
Claim · model-written summary
The conclusion states that biochar reduces peanut rhizosphere moisture content, conflicting with its earlier increase.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- biochare0
- Outcome
- moisture content of peanut rhizosphere soile0
- Direction
- reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of biochar can directly reduce the pH and moisture content of peanut rhizosphere soil”
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